公开(公告)号：US11114262B2

公开(公告)日：2021-09-07

申请号：US16764810

申请日：2018-07-13

Applicant: ABB Power Grids Switzerland AG

Inventor： Manish Sinjonia ,  Krunal Kansara ,  Ajit Kadam ,  Shashwat Chauhan

IPC: H01H1/44 ,  H01H31/20 ,  H01H31/28 ,  H01H33/12

Abstract: A switchgear having bus transfer current switching capability by a turn and twist mechanism that includes a contact system for electrical current conduction and bus transfer switching is provided. The contact system has fixed and movable contact assemblies. Each contact assembly includes main contacts and arcing contacts. The arcing contacts are for bus transfer switching. The movable contact assembly includes a current path pipe and an end piece. The current path pipe is a cylindrical pipe, and the end piece is a rectangular block. The movable contact assembly includes a movable main contact provided on the rectangular block, and a movable arcing contact provided at the end of the cylindrical pipe on a portion about the periphery. During engagement, the cylindrical pipe turns about a first axis to bring the contact assemblies proximal to each other, and twists about a second axis for engagement of the main contacts.

公开(公告)号：US20210012978A1

公开(公告)日：2021-01-14

申请号：US17042131

申请日：2019-03-11

Applicant: ABB Power Grids Switzerland AG

Inventor： Kalpesh Ishwarbhai Chauhan ,  Krunal Kansara ,  Manish Sinjonia ,  Shashwat Chauhan

IPC: H01H1/38 ,  H01H31/00 ,  H01H31/28 ,  H01H33/12

Abstract: The invention relates to a center break switch having a contact system for electrical current conduction and bus transfer switching. The contact system includes two moving contacts. One of the two moving contacts includes a finger contact and the other moving contact includes a first contact. Each moving contact includes a contact for bus transfer switching, wherein one of the two contacts includes a spherical contacting element, and the other contact includes a rectangular contacting element. The spherical contacting element and the rectangular contacting element engage during switching for the bus transfer, and stay in contact when the finger contact is engaged with the first contact for electrical current conduction.